.middle {
    display: flex;
    justify-content: center;
    margin: 50px 0;
}

.middle > div {
    width: 1000px;
    border: 1px solid red;
}

.middle > div > div:nth-child(2) {
    padding: 10px;

}


.middle > div > div:nth-child(1) {
    border-bottom: 1px solid red;
}

/*--------------------------*/
.online > div {
    display: flex;
    justify-content: center;
}

.online > div:nth-child(1) > div:nth-child(1) > div:nth-child(1) {
    display: flex;
    justify-content: center;
}

.online > div:nth-child(1) > div:nth-child(1) > div:nth-child(1) > div {
    display: flex;
    align-items: center;
}

.online > div > div:nth-child(1) > div:nth-child(1) > div > div:nth-child(1) {
    color: orange;
    font-size: 40px;
}

.online > div > div:nth-child(1) > div:nth-child(1) > div > div:nth-child(2) {
    color: gray;
    font-size: 30px;

}

/*-------------------------------*/
.online > div:nth-child(2) > div {
    width: 700px;
    margin: 50px 0;
}

.message > div > div:nth-child(1) {
    line-height: 30px;
}

.message > div > div:nth-child(2) {
    height: 30px;
    line-height: 30px;

    border: 1px dashed red;
    padding: 0 20px;
    background-color: rgb(238, 238, 238);
}

.message > div:nth-child(3) > div:nth-child(2) {
    height: 100px;
    line-height: 20px;
}

.message > div:last-child {
    display: flex;
    justify-content: center;
}

.message > div:last-child > div {
    color: white;
    background-color: rgb(230, 145, 55);
    padding: 10px 60px;
    margin: 30px;
    border-radius: 45px;
    box-shadow: 5px 5px 3px 3px blue;
    cursor: pointer;
}